Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. John O Johnson, MD

Individual provider Diagnostic Radiology Physician · NPI 1073565792

Dr. John O Johnson, MD practises Diagnostic Radiology in San Diego, California. Graduated from University of Florida College of Medicine in 1985, 41 years ago. Practices with IHS Radiology Medical Group Inc, a 65-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
41
Trained at
University of Florida College of Medicine
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

150 W Washington St
San Diego, CA 92103-2005
Phone: (619) 295-9729
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence G59632 (CA)

Record details

NPI number1073565792
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 17, 2006
Last updated in NPPESApril 12, 2021
Certification dateApril 12, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolUNIVERSITY OF FLORIDA COLLEGE OF MEDICINE
Graduated 1985 (41 years in practice)
Group practice Ihs Radiology Medical Group Inc — 65 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients2,454
Services billed 4,424 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at IHS Radiology Medical Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 65 clinicians in the practice; 12 are shown here.

Other providers in San Diego